Waste trap



Nov. 16, 1937. A. G RDON v 2,099,061-

WASTE TRAP Original Filed JulyZO, 1935 Ari/z ur 6 ordon, t 1 Q /zue/z 20/ Aiiorng,

20 Another important object of the invention is formed integral with thesaid basin.

Patented Nov. 16, 1937 Q iJNlT s'rs WASTE TRAP Arthur Gordon, Chicago,111.

Application July 20, 1935, Serial No. 32,351 Renewed April 3, 1937 4Claims. (01. 182-9) This invention relates in general to traps and of myimproved trap, which basin may be of any more particularly tocombination drain and waste desired cross sectional shape (circular, orrectraps adapted for treating waste water from tangular as shown) andmay be formed of any garages and the like for the removal of oil, greasesuitable material. The upper edge of the basin and sediment therefrom. His open, and is provided adjacent thereto With 5 A principal object ofthe invention is the proan inwardly extending annular flange l2, uponvision of certain improvements in combination the upper surface of whichis supported a suitdrain and waste traps, similar to that disclosed ablecover E3 in the form of a grating of a size in my prior Patent No.1,959,623 issued May 22, and strength to permit the use of the same in1934, whereby backing up of sewer gas and the garages and the like. Thegrating I 3 is readily 10 like is positively prevented and the trap is,as removable for the purpose of gaining access to a consequence,completely fireproof. the interior of the basin ll.

Another important object of the invention is The inner portion of theannular flange I2 is the provision of a removable catch basin or pan cutaway to provide a thinner annular flange I4,

which engages or is supported by the usual basin the upper surface ofwhich is provided with a 15 forming the walls of the trap in such manneras centrally located groove I5 (note Fig. 4 particuto allow a water sealto form at the point of conlarly). It is to be understood that thegroove nection between the basin and the pan to prevent l5 and theflanges l2, M extend completely the escape of gas therethrough. aroundthe main basin H, and are preferably the provision of baffle meansadjacent the out- A catch basin in the form of a pan It with an let ofsaid pan or catch basin and so related outwardly extendingcircumferential flange I1 is thereto as to form another seal against theesadapted to be removably inserted in the main cape of gas from the mainbasin through the pan. basin l i, with the flange l1 resting on and sup-A further important object of the invention ported by the flange i l. Onits lower edge, the is the provision of valve means which will be flangeI7 s provided with an annular rib or bead automatically opened to breakthe siphoning of I8 which is adapted to seat within the annular the trapwhen the vent is clogged or choked, and groove 55 in the fla e When theD n 6 s in which will be automatically closed to prevent operativeposition, as shown in Fig. 2. backing up of water or sewer gas. The panI6 is provided along one side and Another important object of theinvention is adjacent the uppe edge eo th an Outlet the provision of aplurality of vent openings so in the m O a Slot i9 gx d ng m placed thatthe vent can be taken directly ver- One e d o the pa to the other, t n ay tically from the trap or can be run horizontally p el h t s de havingthe slot 9, is an from t trap, inwardly and downwardly extending flange2| J Numerous other objects and advantages of the Whlch depends S mew tel W he we d e of invention will be apparent as it is better undertheslot !9. The pan It may also be provided stood from the followingdescription, which, taken with horizontal, w d t in gs 2 o in connectiont t accompanying dr win be used as handles to facilitate the lifting ofthe discloses a preferred embodiment thereof. p Out Of t basin H afterthe ng I 3 has In the drawing, been removed. The pan 3, including theflange Figure l is a plan view of a combination drain 2| and lugs is p ey st or otherwise andtrap embodying the features of my invenally formed.

on; 1 On each of the two inner walls of the main Fig. 2 is averticalsection taken substantially basin I wh a normal to t d f h pan 5n the line 22 of Fig. 1; l5 containing the outlet slot l9, there isprovided Fig. 3 is a slightly enlarged vertical section an inwardlyextending U-shaped flange 23 having taken substantially on the line 33of Fig. 1, with suitable slots for receiving one end of a removableparts b k away; and separator 24. The separator 24 is of substantiallyFig. 4 is an enlarged detail sectional View of U-shaped formation incross-section, as shown in the connection between the main basin and theFig. 2, having one wall of less height than the removable pan, showingthe latter in partially other with the higher wall terminating slightlyraised position. below the bottom of the pan I 6 when all the partsReferring more particularly to the drawing, are properly assembled, andhaving its other ends l reference character ll indicates the basinproper which co-operate with the flanges 23, open.

' around the under side of F rangement,. the valves These open ends areclosed by the flanges 2 3 and walls of the basin ll.

With this arrangement, all water entering the basin from the slot [9 inthe pan 1% must travel the separator 24 and over the short wall to reachthe usual outlet 25 provided in one side wall of the basin, as shown bythe arrows in Fig. 2. The outlet 25 communl' cates with achamber 26preferably formed integrally with the basin H exteriorly of the wallcontaining the outlet 25. The chamber 26 is also provided with an outletnected with the sewer in the usual manner.

Intermediate the top and bottom of the separator 24 and adapted to reston suitable support.- ing flanges 28 and 29 formed integrally with theseparator and the flanges 2 3', respectively; is may be of.

disposed a removable screen 3| which a substantially beehiveconstruction.

Threaded into a tapped hole in the wall of the basin H'containingtheoutlet. 24'so as to communicate with the chamber 26; iscomprising an open ended fitting having a suitable fly or swing,valve'33; With this special ar- 33 will be automatically closed by backpressures to prevent gases from escapingztherethrough, while at thesametime it provides. an automatically operable means for breaking asiphoning of thetrap caused by blocking or'ologging of the usual .ventcommunicating with the chamber 26.

At the upper end of the chamber 26 there is provided a verticallydisposed tapped opening 34,

and in the side wall of the chamber there is a 5' similar horizontallydisposed tapped opening 35.

Either of these openings 34, 35 may be connected in any desired mannerto the usual vent or stack, the one not so connected being sealed with asuitable plug. Thus either a vertical or horizontal lead to the vent maybe employed, as best suits the particular installation.

Withthe above described arrangement of parts it will readily be seenthateasy access to the interior of the basin may be had for cleaning,etc., the grating l3, pan 5, screen 31 and'separator 24 being quicklyand easily removable in the order named. 7

Water and the trap first enterthe pan l6, through the grating i3, withinwhich will be deposited all heavier sediment, as sand or'the like. thewater escapes through the outlet l9 into the basin H. The flow in thebasin will follow the arrows in Fig. 2 around the separator'2 l, throughthe screen 31 and out through the outlets 25 and 21. Any oils or greasespresent will rise to the top of the water level in the basin II, and anysediment not caught bythe pan IE will be restrained by the screen 3 i,so that the waste water enteringthe outlet 25will be practically clearof any sediment, oils or greases.

Due to the provision of the annular groove 15 and rib [8, a small amountof water will be trapped around the upper edge of the pan I6 on 21 whichmay be con.

materials carried thereby entering From the pan l6 the flange l4,resulting in a water seal which will effectively prevent the escape ofgases between the pan l6 and the basin I I.

In addition to this, another effective water seal is maintained by thebaffle or flange 2|, as

will be readily apparent from the showing of Fig. 2, which prevents theescape of gases back through the outlet slot l9.

With the provision of the swinging valve 33 in the open-ended fixture32, not only isthe breaking of'a siphon insured, but escape of gases orwater therethrough is prevented.

It will be apparent that a completely fool-proof and: fireproofcombination drain, and waste trap is thus provided. I V V It is thought.that the invention and many of its.attendant advantages will beunderstood from the foregoing description, and it will be apparent that.various changes may be'made in the form, construction and arrangement ofthe parts without departing from the spirit and scope of the inventionor sacrificingall of its material advantages, the form hereinbeforedescribed being merely a preferred embodiment thereof.

I claim:

1. In a combination drain and waste trap having a main basin,an'annular, inwardly extendforming apart of said basin, and a removablemember having a circumferential flange adapted taco-operate with saidfirst mentioned flange to allow awater seal to be automatically formedbetween said member and said basin by the water draining into the trapto prevent the escape of gases therebetween.

2. In a-combination drain and waste trap having a main basin, anannular, inwardly extending flange forming apart of-said basin, and aremovable member having a circumferential flange adapted to co-operatewith said first men? tioned flange to allow a water seal to beautomatically formed between said member and said basin by the waterdraining into the trap toprevent the escape of gases therebetween, saidfirst mentioned flange being provided with an annular groove, and saidsecond flange being provided with a circumferential rib adapted toco-operate with said groove; 7

3'. In a device of the class described'having a main basin and an outletchamber communicating therewith, an open-ended fixture communicatingwith said chamber and said basin for breaking a siphoning of said basin,and means in said fixture for preventing the escape of gasestherethrough into said basin.

fl. In a device of the class described having a main basin and an outletchamber communicating therewith, an open-ended fixture communicatingwith said chan her and said basin for breaking a siphoning of saidbasin, and means in

